Answer:
The first overtone frequency is 100 Hz.
Solution:
According to the question:
Length of pipe, l = 1.75 m
Speed of sound in air, v_{sa} = 350 m/s
Frequency of first overtone, 
is given by:
Since, the frequency, as clear from the formula depends only on the speed
and the length. It is independent of the air temperature.
Thus there will be no effect of air temperature on the frequency.
Answer:
The answer is C 0.0
Explanation:
Because its sitting still on the ground.
C.
because centripetal means that force only acts in the center of body in motion
Answer:
d. Gravity
Explanation:
In the beginning of their lives, stars are formed when clouds of dust and gas are pulled together by gravity.
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<span>Force F = 280 N
Angle with the ground = 40 degrees
Weight of the Lawnmower = 350 N
Velocity is constant so Acceleration is 0
So Forward force Ff = F cos theta = 280 cos40
Frictional force with resists to back Fb = (u x Force from pressure) + vertical component of Force, where u is the coefficient of friction.
Fb = (u x m x g) + (u x 280sin40)
AS Ff = Fb => 280 cos40 = u x ((m x g) + 280sin40)
u = 280 cos40 / ((350 x 9.81) + 280sin40) = 214.49 / () = 0.405
So the coefficient of friction u = 0.405</span>
